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-rw-r--r--mm/memory-failure.c15
1 files changed, 1 insertions, 14 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 88653c93e4ce..2044fe8920c2 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -840,8 +840,6 @@ static int page_action(struct page_state *ps, struct page *p,
return (result == RECOVERED || result == DELAYED) ? 0 : -EBUSY;
}
-#define N_UNMAP_TRIES 5
-
/*
* Do all that is necessary to remove user space mappings. Unmap
* the pages and send SIGBUS to the processes if the data was dirty.
@@ -853,7 +851,6 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn,
struct address_space *mapping;
LIST_HEAD(tokill);
int ret;
- int i;
int kill = 1;
struct page *hpage = compound_head(p);
@@ -907,17 +904,7 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn,
if (kill)
collect_procs(hpage, &tokill);
- /*
- * try_to_unmap can fail temporarily due to races.
- * Try a few times (RED-PEN better strategy?)
- */
- for (i = 0; i < N_UNMAP_TRIES; i++) {
- ret = try_to_unmap(hpage, ttu);
- if (ret == SWAP_SUCCESS)
- break;
- pr_debug("MCE %#lx: try_to_unmap retry needed %d\n", pfn, ret);
- }
-
+ ret = try_to_unmap(hpage, ttu);
if (ret != SWAP_SUCCESS)
printk(KERN_ERR "MCE %#lx: failed to unmap page (mapcount=%d)\n",
pfn, page_mapcount(hpage));